Index 



Life Cycle of Echinostoma Revolu- 



tura (Froelich), 335-338. 

 Light, intensity of, 3; regulation of, 

 under experimental conditions, 4; 

 importance of, in diurnal migra- 

 tions, 7-8, 10, 12, 15, 35. 

 Lillie, E. S., quoted, 250. 

 Limicolidae, 368. 

 Limnoria, 300. 



japonieum, 304. 

 Limnoridae, 300. 

 Lissorehis fairporti, 279. 

 Literature eited, 81, 88, 133, 180, 200, 

 255, 281, 298, 310, 331, 373, 458. 

 Locomotion periods, in plankton mi- 

 gration. 10. 

 Loci). J., cited, 7, 30; quoted, 8, 9. 



See also Groom and Loeb. 

 Longley, W. H., cited, 80. 

 Looss, A.. 284, 290, 292; cited, 276, 

 294, 297, 338, 340. 341, 346, 355, 

 356, 357, 358, 360, 365, 367, 368. 

 Lophomonas, 235, 

 Louisiana, occurrence in of Sphae- 



roma destructor, 304. 

 Loxodes, 236. 

 Lucilia dispar, 191. 

 Liihe, M., eited, 278-279, 335, 367. 

 Lygaeidae, 137. 

 Lygaeus militaris, 137. 

 Lymnaea emarginata angulata, 275. 

 exilis, 275. 



lmmilis modicella, 275. 

 reflexa, 275, 361. 

 stagnalis appressa, 275. 



perampla, 275. 

 traski, 363. 

 MeAtee, W. L., 363. 

 McCulloch, Irene, 135. See also 



Kofoid and Mc< 'ulloch. 

 McEwen. G. F., cited, 14. 

 Machetes pugnax, 368. 

 Maclaren, J., acknowledgment to, 337. 

 Madras. India, occurrence of Sphae- 



roma vastator in, 302. 

 Magath, T. I;., cited, 279. 

 Manson, P., cited. 369. 

 Margeana, new genus established by 

 W. W. Cort, 283. 

 californiensis, description of, 283; 

 source of material, 2S3 ; external 

 anatomy of, 284; internal an- 

 atomj of, 286 290; figures show- 

 in,-. 285, 287, 289, 291, 293; ex- 

 cretory system, 288-290: com- 

 pared with excretory systems of 

 six other distomes, 290-295; con- 

 clusions, 295 ; figures showing, 

 291, 293: development of, 295; 

 classification, 296-297. 

 Marila marila, 337, 363, 365, 368. 



Marine plankton organisms, reactions 

 of, with reference to their diurnal 

 migrations, 1-83. 

 Mastigamoeba, 212, 237. 

 Mastigella vitrea, 242. 

 Mastigophora, relation to Collodictyon 



triciliatum, 239; 317. 

 Matapolo, Peru, occurrence in, of 



Sphaeronia peruvianum, 304. 

 Mecistoeephalidae, 389. 

 Mecistocephalus insularis, 391. 

 kurandanus, 391. 

 nilgirinus, 389, 

 Mediterranean Sea, occurrence in, of 



Desmopterus, 85. 

 Megastoma, 236. 

 Meisenheimer, J., cited, 85. 

 Melophagus ovinus, 138. 

 Menke, H., cited, 10; quoted, 11. 

 Mesoeoelium, 297. 

 Metaplastic bodies in the Protozoa, 



120. 

 Metazoa, mitosis in. 245. 

 Metridia lueens, 6; reactions of, 50- 

 54; phototropism, 50-51, 52, 53; 

 geotropism, 51-52, 53, 70, 73, 74, 

 76. 

 Michael, E. L., cited, 64, 65; quoted, 



77. 

 Microdissection, description of method 



413-416. 

 Microthorax, 206. 

 Murotus cahfornieus eahfornicus. 



108. 

 Migrations, diurnal, of marine plank- 

 ton organisms, 2; factors in, 7-8, 

 9-13; importance of variation in 

 environment to vertical migra- 

 tions, 14; possible bearing on, of 

 experiments on Acartia clausi and 

 A. tonsa, 22, on Calanus finman In- 

 cus, 39-41, on Labidocera tri- 

 spinosum, 48, on Metridia lueens, 

 54, on Sagitta bipunctata, 64-66; 

 problem of, and method of solv- 

 ing it, 68-69; importance of 

 studying specificity of behavior, 

 69-71; relations between, and 

 geotropism, 72; general facts re- 

 garding, 75-77. 

 Mimhin, E. A., cited and quoted, 136; 



221, 237, 246, 253. 

 Minchin, E. A., and Thompson. J. D., 

 138, 139, 140, 143, 144, 152, 154, 

 163, 164, 174. 

 Miracidia, 338. See also Echino- 

 stoma revolutum. 

 Mitosis m Ci-.rln. mi:-rcti. 11: 117. 

 119: in Collodictyon triciliatum, 

 224-232. 

 Moenkhaus, W. J., quoted, 252 

 Moll, P., cited, 303, 309. 

 Monadina, 237. 



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